In reply to Vanessa Simmons:
I do this route about 4-6 times a month.
If youre not in any real rush and want a more reliable route go for;
A41 - M54 - M6 (can actually take the M5 from the M6 also) - M40
I usually take M56 - M6. It is faster, but you do take a gamble with traffic jams.
The M6 toll might not spit you out on the right motorway take the M40. But during the day time the traffic isn't too bad in the grand scheme of things.